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In celebration of the 31st anniversary of the launching of NASA’s Hubble Space Telescope, astronomers aimed the renowned observatory at a brilliant “celebrity star,” one of the brightest stars seen in our galaxy, surrounded by a glowing halo of gas and dust. Credit: NASA, ESA, STScI

The mighty blue giant AG Carinae is not your normal star. One of the brightest stars in our Milky Way galaxy, AG Carinae is sizzling hot, shining with the brilliance of 1 million suns. You would need super sunscreen if you lived in the star’s vicinity. The star is up to 70 times heftier than our Sun and burning fuel at a ferocious rate.

Its opulence means that the mammoth star is living life in the fast lane. Pouring out so much energy takes a toll on the stellar behemoth. It is prone to convulsive fits, expanding in size like a hot air balloon and shedding its outer layers of material into space. One or more giant eruptions 10000 years ago created the beautiful, expanding shell of dust and gas seen here. Stars like this one are rare: less than 50 reside in our local group of neighboring galaxies.

AI squad mates. Called this a few years ago. It’s too annoying getting strangers to join up on some online task for a game.


Who wouldn’t want an A.I.to sit there and play backseat gamer? That’s exactly what looks to be happening thanks to a recently revealed Sony patent. The patent is for an automated Artificial Intelligence (A.I.) control mode specifically designed to perform certain tasks, including playing a game while the player is away.

In the patent, as spotted by SegmentNext, it’s detailed that this A.I. will involve assigning a default gameplay profile to the user. This profile will include a compendium of information detailing the player’s gaming habits, play styles, and decision-making processes while sitting down for a new adventure. This knowledge can then be harnessed to simulate the player’s gaming habits, even when said gamer is away from their platform of choice.

“The method includes monitoring a plurality of game plays of the user playing a plurality of gaming applications,” reads the patent itself. “The method includes generating a user gameplay profile of the user by adjusting the default gameplay style based on the plurality of game plays, wherein the user gameplay profile incudes a user gameplay style customized to the user. The method includes controlling an instance of a first gaming application based on the user gameplay style of the user gameplay profile.”

SpaceX’s Crew-2 mission lit up the sky with a spectacular spaceflight show this morning (April 23) with a successful crewed launch to the International Space Station.


SpaceX lit up the sky with a spectacular rocket show before dawn today (April 23) with a successful Crew-2 astronaut launch to the International Space Station for NASA.

Riding a Falcon 9 rocket, the company’s Crew Dragon spacecraft, named Endeavour, lifted off from NASA’s Kennedy Space Center in Florida as the sun slowly crept above the horizon, making for an especially colorful and striking view.

Scientists have discovered one of the smallest black holes on record – and the closest one to Earth found to date.

Researchers have dubbed it “The Unicorn,” in part because it is, so far, one of a kind, and in part because it was found in the constellation Monoceros – “The Unicorn.” The findings were published on April 21, 2021, in the journal Monthly Notices of the Royal Astronomical Society.

“When we looked at the data, this black hole – the Unicorn – just popped out,” said lead author Tharindu Jayasinghe, a doctoral student in astronomy at The Ohio State University and an Ohio State presidential fellow.

Over the last 60 years, scientists have been able to observe how and when genetic information was replicated, determining the existence a “replication timing program,” a process that controls when and in what order segments of DNA replicate. However, scientists still cannot explain why such a specific timing sequence exists. In a study published today in Science, Dr. David Gilbert and his team have answered this 60-year-old question.

“Why would care about the order in which they replicate DNA?” asked lead scientist Dr. Gilbert. “After all—all cells need to replicate all their DNA. Our hypothesis has been that it’s not just DNA that replicates, but all of the that read the DNA replicate as well.” Dr. Gilbert further hypothesized that there might be a purpose behind the timing and process because “mother nature would not squander this opportunity to control how the DNA is read.”

“The time at which you replicate provides an ideal time at which to choose whether to maintain all the regulatory factors and continue with the same functional interpretation of the information in DNA or change it to elicit new functions,” explains Dr. Gilbert.

Males may have shorter lifespans than females due to repetitive sections of the Y chromosome that create toxic effects as males get older. These new findings appear in a study by Doris Bachtrog of the University of California, Berkeley published April 22 in PLOS Genetics.

In humans and other species with XY sex chromosomes, females often live longer than . One possible explanation for this disparity may be repetitive sequences within the genome. While both males and females carry these repeat sequences, scientists have suspected that the large number of repeats on the Y chromosome may create a “toxic y effect” that shortens males’ lives. To test this idea, Bachtrog studied male fruit flies from the species Drosophila miranda, which have about twice as much repetitive DNA as and a shorter lifespan. They showed that when the DNA is in its tightly packed form inside the cells of young male flies, the repeat sections are turned off. But as the flies age, the DNA assumes a looser form that can activate the repeat sections, resulting in .

The new study demonstrates that Y chromosomes that are rich in repeats are a genomic liability for males. The findings also support a more general link between repeat DNA and aging, which currently, is poorly understood. Previous studies in have shown that when repeat sections become active, they impair memory, shorten the lifespan and cause DNA damage. This damage likely contributes to aging’s physiological effects, but more research will be needed to uncover the mechanisms underlying repeat DNA’s .

A natural compound previously demonstrated to counteract aspects of aging and improve metabolic health in mice has clinically relevant effects in people, according to new research at Washington University School of Medicine in St. Louis.

A small clinical trial of postmenopausal women with prediabetes shows that the compound NMN (nicotinamide mononucleotide) improved the ability of insulin to increase in skeletal muscle, which often is abnormal in people with obesity, prediabetes or Type 2 diabetes. NMN also improved expression of genes that are involved in muscle structure and remodeling. However, the treatment did not lower blood glucose or , improve blood lipid profile, increase insulin sensitivity in the liver, reduce fat in the liver or decrease circulating markers of inflammation as seen in mice.

The study, published online April 22 in the journal Science, is the first randomized clinical trial to look at the metabolic effects of NMN administration in people.